html, body {
    margin: 0;
    padding: 0;
    border: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.logo {
    font-family: "微软雅黑", "Helvetica Neue", ​Helvetica, ​Arial, ​sans-serif, serif;
    font-size: 22px;
    font-weight: bold;
    color: #444;
    cursor: default;
    position: absolute;
    top: 10px;
    left: 15px;
    line-height: 28px;
}

.topNav {
    position: absolute;
    right: 8px;
    top: 10px;
    font-size: 12px;
    line-height: 25px;
}

.topNav a {
    text-decoration: none;
    color: #222;
    font-weight: normal;
    font-size: 12px;
    line-height: 25px;
    margin-left: 3px;
    margin-right: 3px;
}

.topNav a:hover {
    text-decoration: underline;
    color: blue;
}